Passivhaus overheating shouldn’t happen: it’s one of the criteria of the international Passivhaus standard.
Even so, people sometimes ignore this requirement during the early stages of the design process.
It shouldn’t be ignored. Overheating is a key design issue and should be addressed from the beginning as an integral part of the Passivhaus design process.
This blog post is a simple guide to preventing Passivhaus overheating by design.